How to Precipitate Mercury from Gold Silver Cyanide Leach
The discovery of low-grade gold-silver deposits in the United States has resulted in construction of several cyanide-leach carbon-in-pulp (CIP) milling facilities. Gold and/or silver ores typically contain other metals such as mercury and a variety of base metals. Of all the metals most likely present, mercury presents the most serious problem. Typically, 10 to 30 […]
How to Find Old Abandoned Mines
Abandoned mines are a recurring problem for today’s mining industry. In coal, metal, and nonmetal mining they pose a safety hazard if current workings intercept them; and if they are circumvented, large amounts of recoverable resources may be unnecessarily left in the ground. The problem of delineating the boundaries of these old mines is multifaceted. […]
Rod Mill Design Calculations
EF1 – Dry Grinding – for the same range of work, dry grinding requires 1.3 times as much power as wet grinding. EF2 – Open Circuit Grinding – when grinding in open circuit ball mills, the amount of extra power required, compared to closed circuit ball milling, is a function of the degree of […]
Example Mill Metallurgy Report
example mill metallurgical balance report
How to Size a Ball Mill or Rod Mill and Size its Motor
Dredging Safety
In the 1940’s, we visited hydraulic and dredge mining operations in Alaska and California. He also reviewed 10 yr of accident data pertinent to such mining in the United States. The data, covering the period 1933 to 1942, included those related to 36 fatalities and 3,700 injuries in dredge mining. It is generally assumed that […]
Clay Dewatering – Settling – Thickening
The Florida phosphate industry currently produces more than 80% of the total U.S. supply of phosphate rock. The production of this critical mineral is accompanied by the generation of large quantities of dilute phosphatic clays. The disposal of these phosphatic clays has been a problem to the Florida phosphate Industry since the introduction of large-scale […]
Calculate the Size of a Ball or Rod Mill and its Motor
Evaluate Mineral Processing Plant Performance in Excel
Evaluate plant performance using CUSIM chart example
Mill Operator Training Program
Few people would dispute the necessity of transmitting literally thousands of pieces of information about the new plant to the operator. In fact, there is really only one way to actually do it We have found that writing a series of custom plant operating manuals, specifically designed for an education level of the average high […]